It is primarily because of Zionist Jews. If it was possible to divide Jews into groups of Zionist versus non-Zionist and to compile demographic statistics, I think that you would find that the majority of the Jewish elite were Zionists. And that Zionism and Israel was the basis for the kinship solidarity which gave an added boost to their careers and fortunes.

And since it is the elites which determine the cultural support, this cultural support for Israel and Zionism has powerful support within the system. Support which is unlikely to change anytime soon.